Results 31 to 40 of about 4,746 (164)
Discrete Dynamics in Nature and Society, 2012 Using generalized variational principle and Riccati technique, new oscillation criteria are established for forced second-order differential equation with mixed nonlinearities, which improve and generalize some recent papers in the literature.
Jing Shao, Fanwei Meng, Xinqin Pang
doaj +1 more source
Lyapunov-type inequalities for certain higher-order difference equations with mixed non-linearities
Advances in Difference Equations, 2018 In this paper, we establish some new Lyapunov-type inequalities for some higher-order difference equations with boundary conditions. The obtained inequalities generalize the existing results in the literature.
Haidong Liu
doaj +1 more source
Towards a Proof of Bahri–Coron’s Type Theorem for Mixed Boundary Value Problems
Mathematics, 2023 We consider a nonlinear variational elliptic problem with critical nonlinearity on a bounded domain of Rn,n≥3 and mixed Dirichlet–Neumann boundary conditions.
Azeb Alghanemi +3 more
doaj +1 more source
Advances in Difference Equations, 2019 This paper investigates a class of nonlinear dynamic integral inequalities with mixed nonlinearities in two independent variables. The obtained results can be utilized to study the boundedness of partial dynamic systems on time scales.
Min Fan, Yazhou Tian, Fanwei Meng
doaj +1 more source
Frontiers in Sustainability, 2022 Heat Exchanger Network (HEN) synthesis is primarily formulated as a mixed integer non-linear programming (MINLP) problem based on method of stage-wise superstructure (SWS).
Zekun Yang, Nan Zhang, Robin Smith
doaj +1 more source
A Multilinear Mixing Model for Nonlinear Spectral Unmixing [PDF]
IEEE Transactions on Geoscience and Remote Sensing, 2016 In hyperspectral unmixing, bilinear and linear–quadratic models have become popular recently, and also the polynomial postnonlinear model shows promising results. These models do not consider endmember interactions involving more than two endmembers, although such interactions might compose a nontrivial part of the observed spectrum in scenarios ...
Rob Heylen, Paul Scheunders
openaire +1 more source
Electronic Journal of Differential Equations, 2012 A Picone-type inequality for quasilinear elliptic operators with mixed nonlinearities and with p(x)-Laplacian is established, and Sturmian comparison theorems are derived on the basis of the Picone-type inequality.
Norio Yoshida
doaj
Darboux transformation and dark vector soliton solutions for complex mKdV systems
Partial Differential Equations in Applied Mathematics, 2021 A Darboux transformation and general vector dark soliton solutions are constructed for multi-component complex modified Korteweg–de Vries (mKdV) system.
Rusuo Ye, Yi Zhang, Wen-Xiu Ma
doaj +1 more source
Normalized solutions for planar Schrödinger–Poisson equation with mixed nonlinearities
Bulletin of Mathematical SciencesThis paper deals with the following Schrödinger–Poisson equation with mixed nonlinearities: −Δu+λu+12π(ln|⋅|∗|u|2)u=μ|u|q−2u+|u|p−2u,x∈ℝ2,∫ℝ2u2dx=c, where [Formula: see text], [Formula: see text], [Formula: see text], [Formula: see text] is a given real ...
Muhua Shu, Lixi Wen, Heng Yang
doaj +1 more source
Oscillation of Second-Order Neutral Functional Differential Equations with Mixed Nonlinearities
Abstract and Applied Analysis, 2011 We study the following second-order neutral functional differential equation with mixed nonlinearities (r(t)|(u(t)+p(t)u(t-σ))'|α-1(u(t)+p(t)u(t-σ))′)′+q0(t)|u(τ0(t))|α-1u(τ0(t))+q1(t)|u(τ1(t))|β-1u(τ1(t))+q2(t)|u(τ2(t))|γ-1u(τ2(t))=0, where γ>α>β>0, ∫t0∞
Shurong Sun +3 more
doaj +1 more source